(CNN) -- With "American Idol" returning to Fox next week, it seems Mariah Carey's been working on her look of disdain.
The singer talked with Barbara Walters for ABC News' "Nightline" on Monday about the seemingly endless feud between herself and

(CNN) -- We still don't know if Earth, as a planet that currently harbors life, is alone in the universe. But scientists are actively searching for clues about other potential habitable worlds outside our solar system.

LAS VEGAS (CNNMoney) -- At a gadget show packed with fancy TVs showing off their ultra-high-definition tricks, Vizio had something genuinely novel on display: 3-D video that can be viewed without glasses.